{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "ransom", "arguments": ["price", "place", "attacker", "victim", "payment method", "time", "tool", "damage amount"]}], "input": "WannaCry , the biggest ransomware event of the year , for example , hit hundreds of thousands of PCs around the globe , encrypting files and demanding a payment of $ 300 in bitcoin for the safe return of what was stored on the machine ."}
{"ransom": [{"price": "NAN", "place": "NAN", "attacker": "NAN", "victim": "PCs", "payment method": "NAN", "time": "NAN", "tool": "NAN", "damage amount": "NAN"}]}